A cold front is moving east across the middle of the United States. It will arrive in Central New York Thursday morning. It's the leading edge to some pretty chilly air. Temperatures Tuesday afternoon were in the 20s and 30s with snow falling over Nebraska northward into the Dakotas.

Ahead of the front, southerly winds are increasing, and moisture is now spreading north from the Gulf of Mexico. So is warmer and warmer air.

We'll get a sample of both the warm and cool air over the next couple of days. First we'll have the warmer weather on Wednesday, and then the colder air now over the Plains will build in over us in stages Thursday and Friday.

Lake Effect

The colder air will first arrive on westerly winds Thursday and Thursday night. Then the flow will become more northwesterly on Friday. This means lake effect will be mostly north of Syracuse Thursday night, and then southward closer to Syracuse Friday.

Thursday night and Friday, some light accumulations of snow are likely over higher elevations.